we need the equivalence 1 lbs = 16 oz
We convert the 82 lbs to oz using the equivalence, that is:
82(16) = 1312
therefore 82 lbs are equivalent to 1312 oz, so the total of ounces we have is:
1312 + 11 = 1323
and that is the figure we have to divide by 9
1323/9 = 147
that is 147 oz
we can convert to lbs by dividing by 16
147/16 = 9.19
therefore the result is 147 oz or 9.19 lbs